$ git clone -n http://fedora.riscv.rocks:3000/rpms/ghc-io-streams.git /var/lib/mock/f38-build-726774-100372/root/chroot_tmpdir/scmroot/ghc-io-streams
Cloning into '/var/lib/mock/f38-build-726774-100372/root/chroot_tmpdir/scmroot/ghc-io-streams'...
$ git fetch origin 9cb8fb7318fadf61bcc05604ad20fcb785af374a:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/ghc-io-streams
 * [new ref]         9cb8fb7318fadf61bcc05604ad20fcb785af374a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9cb8fb7 Rebuilt for Fedora/RISCV (riscv64); adding .rvreX to Release: